Use 'field' syntax in dart:dom interfaces.

client/dom/generated/src/interface/SVGFESpotLightElement.dart

 // Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: Do not edit - generated code.
 
 interface SVGFESpotLightElement extends SVGElement {
 
-  SVGAnimatedNumber get limitingConeAngle();
+  final SVGAnimatedNumber limitingConeAngle;
 
-  SVGAnimatedNumber get pointsAtX();
+  final SVGAnimatedNumber pointsAtX;
 
-  SVGAnimatedNumber get pointsAtY();
+  final SVGAnimatedNumber pointsAtY;
 
-  SVGAnimatedNumber get pointsAtZ();
+  final SVGAnimatedNumber pointsAtZ;
 
-  SVGAnimatedNumber get specularExponent();
+  final SVGAnimatedNumber specularExponent;
 
-  SVGAnimatedNumber get x();
+  final SVGAnimatedNumber x;
 
-  SVGAnimatedNumber get y();
+  final SVGAnimatedNumber y;
 
-  SVGAnimatedNumber get z();
+  final SVGAnimatedNumber z;
 }